She's won two of the last three Australian Open titles, but after an injury-filled year it seems that Victoria Azarenka's career is at a crossroads. It doesn't help matters that a tricky draw awaits in Melbourne.
There will be eight different Grand Slam finalists this year, so women's tennis is as wide open as it's been in decades. History says someone will emerge to take over from Serena Williams, but who that will be isn't at all clear.
The time is now for Petra Kvitova, Eugenie Bouchard and Simona Halep. And they know it. With Serena Williams' mysterious slip, the rising stars have battled their way into Grand Slam finals and made the sport all the more compelling.
The top three women's seeds have been vanquished, thanks to Agnieszka Radwanska's brilliant upset of No. 2 Victoria Azarenka on Wednesday, but those remaining are playing compelling tennis heading into the semifinals.